I would contend that the reason would be that they get most of their campaign finance from member companies of the US Chamber of Commerce either directly or through campaigning against (Dem) challengers. No Republican can afford NOT to listen to the special interest groups that put them in office. Of course this is all speculative but you may want to read the following article in the NY Times last year.

In all due fairness to the Chamber (not that they care an iota about what I am saying here, you can see their policies on taxes at the following link. The Republicans, I contend that were elected with big business moneys, tote this message verbatim. (OK, maybe not verbatim but it sounds the same.)

Every time I hear this pitch I ask the same questions (that never get answered)

1. Can anyone prove that small business owners that make this money WILL hire if they dont get taxed more? Are they willing to make a commitment in exchange for keeping it the way it is? No more than the recipients of TARP moneys did/will.

Just a final note to really confuse you as to where I sit in this debate.

The founding fathers of the United States were the richest men in America. The President of the United States and most members of our Congress are the richest men (and women) in America. They are the richest men and women in America because their families own the largest businesses in America. So, why does the Middle Class of America expect them to give up anything? Be real!